Measurement E151M2591
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0168 | |
| Q2: | 0.0084 GeV2 | |
| W: | 1415.0 GeV | |
| Ebeam: | 1.0539 GeV | |
| ε: | 0.7185 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.35 | 30.0 | -0.0801 | 0.2437 |
| 0.35 | 42.0 | 0.1645 | 0.2278 |
| 0.35 | 54.0 | -0.0847 | 0.232 |
| 0.45 | 30.0 | 0.0783 | 0.2538 |
| 0.45 | 42.0 | -0.0702 | 0.1735 |
| 0.45 | 54.0 | -0.548 | 0.1695 |
| 0.45 | 222.0 | -0.2457 | 0.23 |
| 0.45 | 234.0 | -0.3006 | 0.2229 |
| 0.55 | 18.0 | -0.0924 | 0.2292 |
| 0.55 | 30.0 | -0.0943 | 0.2136 |
| 0.55 | 42.0 | -0.0629 | 0.161 |
| 0.55 | 54.0 | -0.2617 | 0.1574 |
| 0.55 | 150.0 | -0.5753 | 0.2177 |
| 0.55 | 162.0 | -0.134 | 0.2235 |
| 0.55 | 174.0 | 0.3158 | 0.2543 |
| 0.55 | 222.0 | 0.3361 | 0.2071 |
| 0.55 | 234.0 | -0.048 | 0.1956 |
| 0.55 | 246.0 | 0.1595 | 0.211 |
| 0.65 | 42.0 | -0.0527 | 0.2178 |
| 0.65 | 54.0 | -0.334 | 0.2144 |
| 0.65 | 150.0 | -0.1193 | 0.2128 |
| 0.65 | 162.0 | -0.3383 | 0.1979 |
| 0.65 | 210.0 | -0.068 | 0.2329 |
| 0.65 | 222.0 | 0.0136 | 0.178 |
| 0.65 | 234.0 | -0.0779 | 0.1733 |
| 0.65 | 246.0 | 0.3152 | 0.1755 |
| 0.75 | 222.0 | 0.2473 | 0.1854 |
| 0.75 | 234.0 | 0.4965 | 0.198 |
| 0.75 | 246.0 | -0.1463 | 0.2174 |
| 0.75 | 258.0 | 0.2367 | 0.2646 |
| 0.85 | 210.0 | -0.0353 | 0.2371 |
| 0.85 | 222.0 | 0.0901 | 0.2128 |
| 0.85 | 234.0 | 0.052 | 0.1866 |
| 0.85 | 246.0 | 0.3046 | 0.2089 |
Experiment comment: